Resistance using Constant (1-Phase 2-Wire US) Calculator

Formula Used:

\[ R = \frac{K \times P_{loss} \times V_{m}^2}{A \times L \times 4 \times P^2} \]

Constant Underground AC (K):

Line Losses (Ploss):

Watt

Maximum Voltage Underground AC (Vm):

Volt

Area of Underground AC Wire (A):

m²

Length of Underground AC Wire (L):

Meter

Power Transmitted (P):

Watt

Resistance Underground AC (R):

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1. What is Resistance using Constant (1-Phase 2-Wire US)?

Resistance Underground AC is defined as the property of the wire or line that opposes the flow of current through it. This calculator helps determine the resistance in a 1-Phase 2-Wire underground AC system using the constant value and other parameters.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ R = \frac{K \times P_{loss} \times V_{m}^2}{A \times L \times 4 \times P^2} \]

Where:

\( R \) — Resistance Underground AC (Ohm)
\( K \) — Constant Underground AC
\( P_{loss} \) — Line Losses (Watt)
\( V_{m} \) — Maximum Voltage Underground AC (Volt)
\( A \) — Area of Underground AC Wire (m²)
\( L \) — Length of Underground AC Wire (Meter)
\( P \) — Power Transmitted (Watt)

Explanation: This formula calculates the resistance in an underground AC system by considering the constant value, line losses, maximum voltage, wire area, wire length, and transmitted power.

3. Importance of Resistance Calculation

Details: Accurate resistance calculation is crucial for designing efficient power transmission systems, minimizing energy losses, and ensuring proper voltage levels throughout the network.

4. Using the Calculator

Tips: Enter all values in the appropriate units. Ensure all values are positive and valid for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What is Constant Underground AC?
A: Constant Underground AC is defined as the constant of line of an Overhead supply system, specific to the configuration and material properties.

Q2: Why is resistance important in power systems?
A: Resistance affects power losses, voltage drop, and overall efficiency of the power transmission system.

Q3: How does wire area affect resistance?
A: Larger wire area generally results in lower resistance, reducing power losses in the system.

Q4: What factors influence line losses?
A: Line losses are influenced by resistance, current flow, wire material, and environmental conditions.

Q5: Can this calculator be used for other system configurations?
A: This specific calculator is designed for 1-Phase 2-Wire US underground AC systems. Different configurations may require different formulas.